A equation is an algebraic equally that is true only for some values of the variables. These values are called solutions of the equation.
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- Sides of an equation
- Terms: are the monomials that make up the members.
- unknown/variable: are the letters that appear in the equation.
- Solutions: are the values that make the equality true.
- Degree of an equation: is the largest degree of the monomials that its members form. The equations are classified as follows:
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5x + 3 = 2x2 + x Quadratic equation
5x3 + 3 = 2x + x2 Cubic equation
5x3 + 3 = 2x4 +1 Quartic equation
- Equivalent equations: Equations which have exactly the same solutions.